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[texts]73 Magazine (April 1993)
73 Magazine April 1993 (#391) Mini-Quad Loops - Three-fifths-size loops with full-size performance ...... NH6XK 10 Copper Dual-Band Super J-Pole Antenna - Build it in less than an hour ...... KA0NAN 12 HR2510 Hi-Power Modrtication - Increase the performance of this popular HF rig ...... Merrill 17 10 Meter X-Beam - Upgrade your antenna as well as your license ...... N5SJZ 18 Lightweight, Collapsible Quad for 2 Meters - Excellent performance in a small package ........
Keywords: radio; amateur; antenna; mhz; ham; frequency; tor; amateur radio; radio today; ham radio; packet radio; flea market; surface mount; card circle; matching case
Downloads: 2,076
[texts]73 Magazine (January 1994)
73 Magazine January 1994 (#400) Using the World's Most Accurate Frequency Standard, Part 1 - Building a receiver for WWVB ...... K9EUI 10 Micro IDer - An easy-to-build automatic Morse code station identifier ...... KA9SZW, Pointer 18 The "Hula Loop" - A stationary bidirectional hybrid three-element delta loop ...... NH6XK 30 The Quad Charger - A constant current NiCd charger ...... K4GOK 34 EASY-PC Printed Circuit Layout Software - Want to get into computer-aided design (CAD)? ........
Keywords: radio; amateur; antenna; mhz; repeater; ham; power; frequency; amateur radio; radio today; power supply; ham radio; feedback card; matching case; case set; flea market
Downloads: 2,546
[texts]73 Magazine (June 1994)
73 Magazine June 1994 (#405) MRP4 Solar Panel Control Circuit - Build this easy charge controller for your sun-powered station! ...... WB8VGE 10 Surplus Solar: Is It for You? - An affordable alternate backup power system ...... N7MGT 18 Used Batteries for Ham Stations - Another way to save money on power systems ...... N7MGT 22 All About Those Lightweight HF Ham Whips - Easy mobile operating from 160 to 10 ........
Keywords: radio; mhz; amateur; ham; antenna; frequency; battery; amateur radio; radio today; ham radio; feedback card; card circle; power supply; matching case; case set
Downloads: 1,994
[texts]73 Magazine (February 1994)
73 Magazine February 1994 (#401) VHF Meteor Scatter Propagation - Bounce your signal beyond the horizon ...... WB2WIK/6 10 Using the World's Most Accurate Frequency Standard, Part 2 - Building a digital phase comparator ...... K9EUI 18 Computer Control for Your Direct Digital Synthesis (DDS) VFO - Free yourself of the hassles of generating an accurate and stable sinusoidal signal-and more! ...... VE1ABC 26 ASCII-to-Morse-Code Interface - Let your keyboard do the work ........
Keywords: radio; amateur; frequency; mhz; antenna; power; meter; ham; amateur radio; radio today; ham radio; power supply; feedback card; case set; matching case; meteor scatter
Downloads: 2,672
[texts]73 Magazine (April 1992)
73 Magazine April 1992 (#379) The Arrow Antenna - Hit the bull's-eye with this portable VHF sharp shooter ...... KA0VFF/N0IMW 10 The Plumber's Delight - A new look for the J-pole! ...... KB6EPO 16 The Flower Pot Special - Plant your antenna! ...... N1GPH 18 The Rock Bender QRP Transmitter - Win QSOs and influence crystals ...... WI5W 22 Monoband Yagi for 20 Meters - More dBs for the buck ...... AB4GX 30 The SAM1 Transverter - For the challenge of LF/VLF ........
Keywords: antenna; amateur; mhz; frequency; meter; amateur radio; repeater; radio; feedback card; radio today; call call; matching case; power supply; flea market; ham radio
Downloads: 2,289
[texts]73 Magazine (February 1995)
73 Magazine February 1995 (#413) Dual Bi-Square Loop for HF - Try this easy, low-cost approach on 20 and 2 meters ...... K5DKZ 18 Reading Morse Code on Your PC - Decipher Morse code right off the air, or improve your own fist ...... W6PRO 22 Cheap Dual-Band Yagi - A fine VHF/UHF beam made from old TV antennas ...... KA0NAN 46 Grounding and Lightning Protection, Part 1 - Protect your shack and yourself from lightning ........
Keywords: radio; antenna; amateur; mhz; frequency; ham; meter; antennas; power; amateur radio; radio today; ham radio; feedback card; morse code; output power; matching case; aluminum tubing
Downloads: 2,271
[texts]73 Magazine (May 1996)
73 Magazine May 1996 (#428) Build the Bioelectrifier - Heal yourself and take a poke at the medical establishment the same time! ...... WA8YKN 10 Belcher Islands DXpedition - Take off to the Great White North ...... VE3WFS 20 A 220 Super J-Pole Antenna - 220 -Use it or loose it. Here's a simple, inexpensive one-hour building project ...... KA0NAN 26 The Difference Is Dedication - Ham radio Saves four communities ........
Keywords: antenna; radio; amateur; mhz; frequency; power; hams; ham; meter; amateur radio; radio today; feedback card; case set; matching case; power supply; test equipment; flea market
Downloads: 1,695
[texts]73 Magazine (September 1995)
73 Magazine September 1995 (#420) Simple J-Type 10m Vertical - For more versatile DXing ...... W6IOJ 10 Tuner Helper - An easier (and safer) way to tune your antenna while driving ...... K3PUR 14 Just Another Loop Antenna - Or is it? ...... WB2EGQ 20 A Discone Antenna for 10 Meters - It looks like a bird cage, but works like a yagi ...... W1ZB/6 32 Check Your SWR Bridge - Think you have a good bridge? Find out for sure ........
Keywords: antenna; radio; amateur; frequency; receiver; power; ham; mhz; radio today; amateur radio; feedback card; case set; ham radio; tuner helper; current distribution; matching case
Downloads: 1,788
[texts]73 Magazine (May 1992)
73 Magazine May 1992 (#380) Poor Ham's Dynamic Component Analyzer - Build your own Circuit detective ...... KA1MDA 8 Log Periodic Dipole Array for 2 Meters - Wideband performance in a small package ...... N2KLK 14 QRP Sidetone Companion - And part-time code practice oscillator ...... KI5AZ 18 The Copperback Beetle - A new type of "bug" ...... KI5AZ 20 Battery Watchdog - Keeps your battery up to snuff ........
Keywords: radio; amateur; antenna; mhz; frequency; repeater; call; khz; ham; amateur radio; call call; radio today; ham radio; feedback card; power supply; matching case; morse code
Downloads: 1,896
[texts]73 Magazine (July 1996)
73 Magazine July 1996 (#430) Ham Shack Test Equipment - What you really need, based on the authors 47 years of experience ...... KB4ZGC 10 Garbage In-No Garbage Out - Turn hardware store purchases into a cavity filter for satellite and 2m reception ...... AA6NG 12 A Funny Thing Happened On The Way To The Shack - Strange stories from the world of hamdom! ...... W3UWH 16 Receiver Pre-Amplifiers - The pros and cons of these little signal boosters ........
Keywords: radio; amateur; antenna; mhz; ham; repeater; signal; frequency; radio today; amateur radio; spread spectrum; matching case; case set; morse code; power supply; ham radio
Downloads: 1,782
[texts]73 Magazine (October 1995)
73 Magazine October 1995 (#421) The QRP Delight - A full-featured antenna tuner with built-in SWR meter ...... AD5X 10 DDS Dream VFO - Yes, you can build your own synthesizer! ...... KD1JV 14 Portable Solar Electric Power Generator - The sun is free for the using ...... K4SYU 20 Armstrong Updated - A high-performance, regenerative short-wave receiver ...... KC3ZQ 26 Link it All! - Why settle for operation on just two bands? ........
Keywords: radio; amateur; ham; mhz; frequency; antenna; repeater; receiver; hams; amateur radio; radio today; ham radio; feedback card; case set; matching case; solar panel; mars base
Downloads: 2,580
[texts]73 Magazine (July 1993)
73 Magazine July 1993 (#394) Type "N" RF Connectors - How to install and use them ...... WB2WIK/6 10 Mobile CW Operation - Ham radio's oldest mode keeps rolling ...... WB2WIK/M6 16 A Tilt-Over/Swivel Antenna Mount for Recreation Vehicles - Take your fun-size vertical on the road ...... W4PVI 28 Expanded Range Direct-Reading Inductance Meter - Build this cheap choke checker ...... W8VWX 34 Deluxe Function Generator - This simple project has many uses ........
Keywords: radio; amateur; antenna; mhz; ham; frequency; repeater; amateur radio; radio today; feedback card; ham radio; power supply; card circle; matching case; repeater hpa
Downloads: 1,877
[texts]73 Magazine (September 1994)
73 Magazine September 1994 (#408) Compact 160 Meter Transmitting Loop Antenna - You don't need to move to a new QTH! ...... G2BZQ 10 The Discriminator - A directional receiving antenna for hams and SWLs ...... G2BZO 16 Low-Cost Transmission Lines - What you don't know can cost you ...... K5DKZ 22 The Challenge of 1750 Meters - No license required ...... WD4PLI/6 36 The HOFI Antenna Switch - Quality at every turn ........
Keywords: radio; antenna; amateur; ham; repeater; amateur radio; meter; mhz; ham radio; radio today; feedback card; card circle; power supply; matching case; packet radio
Downloads: 1,837
[texts]73 Magazine (January 1995)
73 Magazine January 1995 (#412) The Pyramid Antenna - Harness the power of this 10 meter workhorse ...... W9CGl 14 Using GE Progress Line Receiver Strips - A low-tech solution for many situations ...... KI5PGI 24 PTT Control from Receiver Audio - Here's an easy way to key a transmitter for remote or repeater operation ...... KB8XI 32 The 80/40/30m Tripole - It's a what? ...... W9CGI 36 The Yaesu FT-840 HF Transceiver - Enjoy a simple-to operate full-featured HF rig ........
Keywords: antenna; radio; amateur; ham; mhz; mfj; power; receiver; audio; frequency; amateur radio; radio today; power supply; ham radio; feedback card; dual band; matching case; case set
Downloads: 1,880
[texts]73 Magazine (August 1991)
73 Magazine August 1991 (#371) Poor Man's Packet - A complete software TNC for PC compatibles! ...... WB2EMS, N8KEI 8 Low Cost Discone - Wideband coverage from 144 to 1296 MHz ...... AD5X 24 High Speed Data Acquisition - Sample the outside world with this inexpensive interface ...... N8KDD 28 Software for the Ham Shack, Part IV - Useful ham calculations you can program yourself! ...... WA4BLC 32 Universal CAT Interface - Control your rig with your computer! ........
Keywords: radio; amateur; ham; mhz; antenna; program; packet; frequency; amateur radio; radio today; ham radio; feedback card; radio shack; power supply; matching case; battery pack
Downloads: 2,164
[texts]73 Magazine (October 1999)
73 Magazine October 1999 (#468) Need a UHF Dipper? - Part 1: Old TV tuners to the rescue! ...... W6WTU 10 HT Porta-Power - Project Portable extended power pkg for HTs ...... WB3CEH 15 FM CW! - Repeater code-practice sessions ...... WB9YBM 16 FYI: FQY - Another look at the Fractal Quad Yagi ...... KF7BS 18 Secrets of Transmission Lines - Part 3: More AC review ...... KE2QJ 22 The History of Ham Radio - Parts 1 and 2: From the birth of the wireless ages to 1920 ........
Keywords: radio; amateur; power; kit; ham; web; thai; antenna; radio today; amateur radio; web site; matching case; power station; intermediate skill; ham radio; feedback card
Downloads: 2,537
[texts]73 Magazine (December 1993)
73 Magazine December 1993 (#399) Deluxe Communications Audio Board - Enhance your audio with this practical add-on ...... WD4PLI 10 Resolving 2 Meter/Cable TV Interference - A winning strategy for keeping the peace, and staying on the air! ...... NM8R 18 Five-Element T-Match VHF Yagi - Excellent performance characteristics on 2 meters ...... KA0NAN 28 Remote Tuned Active Antenna - Tune this easy amplified antenna without leaving your chair ........
Keywords: radio; amateur; antenna; mhz; ihe; ham; frequency; repeater; audio; amateur radio; radio today; feedback card; power supply; case set; matching case; ham radio; card circle
Downloads: 2,909
[texts]73 Magazine (August 1996)
73 Magazine August 1996 (#431) Build the QUAD-12 Personal DataLogger ...... N8KDO 10 Vee Antenna With Vertical Tails - A multiband antenna with low-angle radiation for the low bands ...... K0NM 16 PC Controlling Your Rig - All it takes is a few parts and a BASIC program ...... K8KWD 22 Worthy of Recognition: Hap Holly KC9RP - Blindness is a challenge for this versatile, accomplished ham ...... NZ9E 28 Simple Crystal Activity Tester - Check and match crystals for your home-brew projects ........
Keywords: antenna; radio; amateur; frequency; ham; mhz; voltage; circuit; hams; ihe; amateur radio; radio today; matching case; feedback card; ham radio; radio shack; power supply; circuit board
Downloads: 1,744
[texts]73 Magazine (December 1994)
73 Magazine December 1994 (#411) Kit Builders' Primer - Yeah, I built that ...... WB8VGE 10 Stretched Vertical Gain Antenna tor 6 Meters - Here's a way to dramatically improve your 50 MHz operating capabilities ...... WB2EQG 30 The CW Operator's Friend - Simply push a button and send those frequently-repeated CQs, IDs and QTHs ...... WV5Q 36 Polarity Protection Plus - Don't take a chance of smoking your next project! ........
Keywords: radio; amateur; antenna; ham; mhz; mfj; power; kit; tor; amateur radio; radio today; ham radio; case set; power supply; oak hills; matching case; feedback card
Downloads: 2,313
[texts]73 Magazine (September 1996)
73 Magazine September 1996 (#432) The Amateur's Guide to Free Energy Devices - A history and hints for further experimentation ...... WA8YKN 10 Adventures on the Red Sea - DXing in style in an unforgettable setting ...... KA9SOF 20 The Wonderful Twin-T - Its a code oscillator: a transistor, or even a piano! ...... AD4UA 24 A Kite/Balloon-Supported Zepp for 160 Meters - Make your antenna fly high! ........
Keywords: radio; antenna; amateur; ihe; frequency; mhz; ham; arrl; thai; amateur radio; radio today; ham radio; matching case; field day; case set; power supply; free energy
Downloads: 1,907
[texts]73 Magazine (July 1995)
73 Magazine July 1995 (#418) Dish Antenna for Weather Satellite Images - Build your own 5-loot parabolic dish for 1691 MHz ...... WA9PYH 10 A low Noise Amplifier for 1691 MHz - Build this LNA for weather satellite reception ...... WA9PYH 20 Sailing with Ham and Marine Radio Equipment - Carry ham and marine systems aboard without permanent installation ...... WB6NOA 26 2 Meter Collinear Vertical Antenna - Build almost 6dB of gain for almost $10 ........
Keywords: radio; antenna; ham; amateur; mhz; meter; ihe; marine; power; vhf; amateur radio; radio today; feedback card; ham radio; case set; marine vhf; matching case; radio shack
Downloads: 1,806
[texts]73 Magazine (December 1998)
73 Magazine December 1998 (#459) Probing Auto Electronics - Help your neighbor identify his car's problem and be an electronic's hero! ...... W6WTU 10 Announcing the QRPeanut - Here's a compact QRP transmatch you can build for next to nothing ...... N5GZH 14 Keys to Better Operating - Yes, much of it is common sense ...... W6BNB 17 Electronic Bug Emulator - Put some personality back into your CW ........
Keywords: radio; ihe; amateur; frequency; antenna; ham; power; thai; circuit; amateur radio; radio today; ham radio; morse code; power supply; matching case; front panel; power meter
Downloads: 3,601
[texts]73 Magazine (March 1992)
73 Magazine March 1992 (#378) Build a GaAsFET Preamp Sequencer - Mast-mount your preamp for maximum performance ...... WZ1V 8 Simple Pulsed Crystal Signal Source - Find the right frequency ...... KA1MJP 14 An ATV Downconverter with a Difference - Keep FM voice repeaters out of your picture ...... W9NTP 22 Using RS-12 - Work the world with this unique satellite ...... G3IOR 32 40/80 Meter Wave Ryder - A QRP tube transmitter powered by 12 volts DC ........
Keywords: mhz; radio; amateur; antenna; frequency; signal; power; ham; amateur radio; radio today; feedback card; ham radio; power supply; amateur satellite; matching case; field strength
Downloads: 1,767
[texts]73 Magazine (March 1994)
73 Magazine March 1994 (#402) Getting Started With Satellite Imagery - Enjoy a bird's-eye view using your PC and VHF rig ...... KO4BD 10 Using the World's Most Accurate Frequency Standard, Part 3 - Building a good secondary frequency standard ...... K9EUI 18 The TW-1 Cheap Dig ital Front Panel - Easy thumbwheel tuning for the Techno-Whizzy 1 ...... N9JZW 26 The FOXBOX - A voice ID T-hunt controller ........
Keywords: radio; amateur; mhz; antenna; repeater; ham; frequency; amateur radio; radio today; ham radio; feedback card; log amp; power supply; matching case; flea market
Downloads: 2,068
[texts]73 Magazine (March 1996)
73 Magazine March 1996 (#426) JY74X-JY74Z: A Joint Jordanian-Israeli Operation - Our peace process dividend: DXpeditions to Amman and Mt. Nebo, celebrating the first anniversary of the "Washington Declaration" peace accords ...... 4X6KJ-JY8KJ 10 Into Orbit with the Final Phase 3 OSCAR - It's a bird! it's a plane! it's ...... WA5ZIB 16 73's, DX Dynasty Award ...... Staff 26 Simple Secondary Frequency Standard - Stay within your legal frequency ........
Keywords: radio; antenna; amateur; frequency; ham; voltage; mhz; digital; receiver; amateur radio; radio today; feedback card; power supply; matching case; flea market; case set; ham radio
Downloads: 1,773
[texts]73 Magazine (March 2000)
73 Magazine March 2000 (#472) The Quest for Super Sounding Audio - How to improve your on-the-air image by 10 dB ...... K4TWJ 10 Salvage Special: TV/VCR Tuner Receiver - Watch the neighbor's curb for an old VCR! ...... W6WTU 16 The Care and Feeding of NiCds - Some clever tips for long life, plus a neat home-brew charger ...... K9TRG 21 Secrets of Transmission Lines - Part 7: Impedance matching ........
Keywords: radio; amateur; antenna; mhz; ham; noise; power; audio; frequency; amateur radio; radio today; ham radio; noise figure; noise head; feedback card; web site; smith chart; power supplies; matching case
Downloads: 1,830
[texts]73 Magazine (April 2001)
73 Magazine April 2001 (#485) Sabah -Land Below the Wind - Come along on this DXpedition to 9M6 ...... G3SWH 10 Arachnida Warcum - Whatever you calf it, this WARC bands spider species is a tri-band delta loop well worth trying ...... VE3XI 16 Way Cool Rocket Project - Conclusion - This 70cm rocketborne radio telemetry system is strictly for kids -Not! ...... N4XVF 18 Disaster Overkill - Say what you want about this ham's response to emergency preparedness -until you need him, that is ........
Keywords: radio; amateur; antenna; ham; power; photo; april; frequency; meters; amateur radio; radio today; ham radio; strip chart; morse code; switching power; power supplies; matching case; heavy duty; web site
Downloads: 1,977
[texts]73 Magazine (October 2000)
73 Magazine October 2000 (#479) With Fingers Crossed - The latest on Phase 3-D ...... G3RWL 10 Low-Cost P3D Antenna Setup - These three antennas are perfect for everybody ...... K5OE 17 Cruising for Satellites - If you can get away with it, this is the best of both worlds ...... W5ACM 22 From Russia, With Satellite - "The name is Brown, Jerry Brown" ...... 27 Inside Digital TV/VCR Tuners - Part 2: Data transmitter for testing ........
Keywords: amateur; antenna; radio; satellite; antennas; mhz; mfj; kit; receiver; amateur radio; radio today; data transmitter; web site; power supply; high power; ham radio; switching power; matching case; omega sales
Downloads: 1,961
[texts]73 Magazine (March 2001)
73 Magazine March 2001 (#484) Way Cool Rocket Project: Part 2 - This 70cm rocketborne radio telemetry system is strictly for kids -Not! ...... N4XVF 10 Build Yourself an NVIS - If you want to talk to the guy in the next county on HF, of course ...... VE2EQL 18 Inside Digital TV/VCR Tuners - Part 7: Conclusion ...... W6WTU 19 Build This Variable AC Bench Supply - If you can find a Variac transformer, that is ........
Keywords: radio; antenna; amateur; ham; qrp; transmitter; kit; mhz; receiver; amateur radio; radio today; web site; ham radio; nose cone; elevation bearing; matching case; high power; bearing box; radio shack
Downloads: 2,831
[texts]73 Magazine (June 2000)
73 Magazine June 2000 (#475) Ah, the Technomadic life! - This special to 73 on mobiling is... well... special ...... N4RVE 10 Electronics Bench for Dummies - And it doesn't take an Einstein to know how important a good bench -like this one -really is ...... N2XS 18 Tuner King Strikes Again - Part 1: Make a basic VHF/UHF signal source from your TV/VCR tuner ...... W6WTU 24 Well, Not Exactly - Some of the finer points about using your O'scope ........
Keywords: radio; amateur; frequency; power; signal; mhz; tuner; antenna; photo; amateur radio; radio today; power supply; field day; web site; front panel; feedback card; main unit; matching case; major historical
Downloads: 1,878
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